package com.sjgtw.cloud.common.security.feign;

import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import com.sjgtw.cloud.common.core.utils.ip.IpUtils;
import org.springframework.stereotype.Component;
import com.sjgtw.cloud.common.core.constant.CacheConstants;
import com.sjgtw.cloud.common.core.utils.ServletUtils;
import com.sjgtw.cloud.common.core.utils.StringUtils;
import feign.RequestInterceptor;
import feign.RequestTemplate;

/**
 * <p>Title: Feign的请求拦截器</p>
 * <p>Description: </p>
 * @author Admin
 * @date 2020-7-1
 */
@Component
public class FeignRequestInterceptor implements RequestInterceptor
{
	@Override
	public void apply(RequestTemplate requestTemplate) {
		HttpServletRequest httpServletRequest = ServletUtils.getRequest();
		if (StringUtils.isNotNull(httpServletRequest)) {
			Map<String, String> headers = ServletUtils.getHeaders(httpServletRequest);
			// 传递用户信息请求头，防止丢失
			String userId = headers.get(CacheConstants.DETAILS_USER_ID);
			if (StringUtils.isNotEmpty(userId)) {
				requestTemplate.header(CacheConstants.DETAILS_USER_ID, userId);
			}
			String userName = headers.get(CacheConstants.DETAILS_USERNAME);
			if (StringUtils.isNotEmpty(userName)) {
				requestTemplate.header(CacheConstants.DETAILS_USERNAME, userName);
			}
			String authentication = headers.get(CacheConstants.AUTHORIZATION_HEADER);
			if (StringUtils.isNotEmpty(authentication)) {
				requestTemplate.header(CacheConstants.AUTHORIZATION_HEADER, authentication);
			}

			// 配置客户端IP
			requestTemplate.header("X-Forwarded-For", IpUtils.getIpAddr(ServletUtils.getRequest()));
		}
	}
}